n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 67 |
5 | 374 |
6 | 2795 |
7 | 27472 |
8 | 343129 |
9 | 5242178 |
10 | 94775045 |
11 | 1976279584 |
12 | 46619596363 |
13 | 1225918376726 |
14 | 35526110971595 |
15 | 1124201803439968 |
16 | 38555828073355441 |
17 | 1424165085382532162 |
18 | 56356111920073052165 |
19 | 2378150844047351691376 |
20 | 106590791633357076443347 |
[1,2,5,16,67,374,2795,27472,343129,5242178, 94775045,1976279584,46619596363,1225918376726, 35526110971595,1124201803439968,38555828073355441, 1424165085382532162,56356111920073052165, 2378150844047351691376,106590791633357076443347] |